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Erin OliverSep 12, 2025
What to do if Buderus Logamatic web KM200 is constantly red?
- AAngela PruittSep 12, 2025
If your Buderus Control Unit displays a constant red light, it could mean one of two things. If it's during commissioning or a factory reset, it indicates that neither a BUS nor a LAN connection is available. To fix this, disconnect the module from the power supply, make the BUS and LAN connections, and then recommission the module. Otherwise, if it occurs at another time, it suggests an internal fault, and the module should be replaced.










